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871daf6aa1
I wanted to use SDL_inprint in multiple renderers, and that meant I had to modify the library a little bit. also, I just noticed that the smearing issue is back! Not as bad as before, but MMC3 games seems to be affected when the screen scrolls upwards... wierd.
98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
#include "SDL_inprint2.h"
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#include <SDL.h>
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#include "inline_font.h" /* Actual font data */
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#define CHARACTERS_PER_ROW 16 /* I like 16 x 8 fontsets. */
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#define CHARACTERS_PER_COLUMN 8 /* 128 x 1 is another popular format. */
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SDL2_inprint::SDL2_inprint(SDL_Renderer *renderer) {
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selected_renderer = renderer;
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Uint32 *pix_ptr, tmp;
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int i, len, j;
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SDL_Surface *surface;
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Uint32 colors[2];
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selected_font_w = inline_font_width;
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selected_font_h = inline_font_height;
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if (inline_font != NULL) { selected_font = inline_font; return; }
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surface = SDL_CreateRGBSurface(0, inline_font_width, inline_font_height, 32,
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff
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#else
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0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000
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#endif
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);
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colors[0] = SDL_MapRGBA(surface->format, 0xFF, 0xFF, 0xFF, 0xFF);
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colors[1] = SDL_MapRGBA(surface->format, 0x00, 0x00, 0x00, 0x00 /* or 0xFF, to have bg-color */);
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/* Get pointer to pixels and array length */
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pix_ptr = (Uint32 *)surface->pixels;
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len = surface->h * surface->w / 8;
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/* Copy */
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for (i = 0; i < len; i++)
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{
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tmp = (Uint8)inline_font_bits[i];
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for (j = 0; j < 8; j++)
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{
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Uint8 mask = (0x01 << j);
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pix_ptr[i * 8 + j] = colors[(tmp & mask) >> j];
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}
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}
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inline_font = SDL_CreateTextureFromSurface(selected_renderer, surface);
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SDL_FreeSurface(surface);
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selected_font = inline_font;
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}
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SDL2_inprint::~SDL2_inprint() {
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SDL_DestroyTexture(inline_font);
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}
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void SDL2_inprint::set_color(Uint32 color) {
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SDL_Color pal[1];
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pal[0].r = (Uint8)((color & 0x00FF0000) >> 16);
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pal[0].g = (Uint8)((color & 0x0000FF00) >> 8);
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pal[0].b = (Uint8)((color & 0x000000FF));
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SDL_SetTextureColorMod(selected_font, pal[0].r, pal[0].g, pal[0].b);
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}
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void SDL2_inprint::print(const char* str, Uint32 x, Uint32 y) {
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SDL_Rect s_rect;
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SDL_Rect d_rect;
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d_rect.x = x;
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d_rect.y = y;
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s_rect.w = selected_font_w / CHARACTERS_PER_ROW;
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s_rect.h = selected_font_h / CHARACTERS_PER_COLUMN;
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d_rect.w = s_rect.w;
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d_rect.h = s_rect.h;
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for (; *str; str++)
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{
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int id = (int)*str;
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#if (CHARACTERS_PER_COLUMN != 1)
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int row = id / CHARACTERS_PER_ROW;
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int col = id % CHARACTERS_PER_ROW;
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s_rect.x = col * s_rect.w;
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s_rect.y = row * s_rect.h;
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#else
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s_rect.x = id * s_rect.w;
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s_rect.y = 0;
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#endif
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if (id == '\n')
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{
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d_rect.x = x;
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d_rect.y += s_rect.h;
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continue;
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}
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SDL_RenderCopy(selected_renderer, selected_font, &s_rect, &d_rect);
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d_rect.x += s_rect.w;
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}
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}
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